Foster-brother - definition, transcription

Amer.  |ˈfɑːstr̩ ˌbrʌðr̩|
Brit.  |ˈfɒstə ˌbrʌðə|

noun

- your foster brother is a male who is not a son of your parents but who is raised by your parents
See also:  WebsterWiktionaryLongman